1Turn off your phone, then remove the battery cover and battery.

2Look for the 15- to 17-digit number on the label. The first 15 digits represent the IMEI number.

SIM card protection

The SIM card lock only protects your subscription. Your phone will still work with two new SIM cards. If one of the SIM card lock is on, you have to enter a PIN (Personal Identity Number). If you enter your PIN incorrectly more times than the maximum number of attempts allowed, your SIM card will become blocked. You need to enter your PUK (Personal Unblocking Key) and then a new PIN. Your PIN, PIN2 and PUK are supplied by your network operator.

To enable the SIM card PIN lock

1From the Home screen, tap .

2Find and tap Settings > Security > Set up SIM card lock.

3Tap Lock SIM card.

4Enter the SIM card PIN and tap OK.

To change the SIM card PIN

1From the Home screen, tap .

2Find and tap Settings > Security > Set up SIM card lock.

3Tap Change SIM PIN.

4Enter the old SIM card PIN and tap OK.

5Enter the new SIM card PIN and tap OK.

6Re-type the new SIM card PIN and tap OK.

To change the SIM card PIN2

1From the Home screen, tap .

2Find and tap Settings > Call settings

3Tap Fixed dialling numbers > Change PIN2.

4Enter the old SIM card PIN2 and tap OK.

5Enter the new SIM card PIN2 and tap OK.

6Confirm the new PIN2 and tap OK.

To unblock a locked SIM card

1When Enter PUK and new PIN code appears, enter the PUK code.

2Enter a new PIN code and tap OK.

If you enter an incorrect PUK code too many times, the SIM card becomes blocked. If this happens, contact your service provider to get a new SIM card.

Setting a screen lock

To set a screen lock

1From your Home screen, tap > Settings > Security > Screen lock.

2Select an option.

It is very important that you remember your screen unlock pattern, PIN or password. If you forget this information, it may not be possible to restore important data such as contacts and messages. Refer to Sony Customer support for more information.

To create a screen unlock pattern

1From the Home screen, tap .

2Find and tap Settings > Security > Screen lock > Pattern.

3Follow the instructions in your phone. You are asked to select a security question that will be used to unlock the phone if you forget your screen unlock pattern.

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Sony ST26i/ST26a manual SIM card protection, Setting a screen lock

ST26i/ST26a specifications

The Sony ST26i, also known as the Sony Xperia J, is a smartphone that was released in the latter part of 2012. It was part of Sony’s Xperia series and aimed at more budget-conscious consumers while still providing core features found in higher-end models at that time.

One of the standout features of the Xperia J is its design. The device includes a sleek and stylish exterior with a 4-inch TFT touchscreen display, boasting a resolution of 480 x 854 pixels. This display provides vibrant colors and decent viewing angles, making it suitable for casual browsing, social media, and video consumption.

The Xperia J is powered by a 1GHz single-core Qualcomm Snapdragon S1 processor, which was complemented by 512MB of RAM. While the hardware may seem modest by today’s standards, it was optimized to run the Android 4.0 Ice Cream Sandwich operating system. Additionally, the device was upgradable to Android Jelly Bean, offering users access to improved performance and features.

In terms of storage, the Xperia J comes with 4GB of internal storage, which can be expanded via microSD cards up to 32GB. This allows users to store a variety of apps, photos, and videos without hassle. The device also features a 5-megapixel rear camera with LED flash, capable of recording video in 720p HD. Although it lacks a dedicated front-facing camera, the Xperia J still competes well in its category for casual photography.

Connectivity options for the Xperia J are comprehensive, including 3G, Wi-Fi 802.11 b/g/n, Bluetooth 4.0, and GPS functionality. The phone also packs a decent 1750 mAh battery, providing a day’s worth of usage under moderate to heavy use.

Other notable technologies incorporated in the Xperia J include Walkman features for music playback, which were popular in Sony devices, and the inclusion of Timescape UI, enhancing the user experience by aggregating social media updates.

Overall, the Sony ST26i/ST26a Xperia J offers a balance of design, performance, and essential smartphone features, making it a worthy option for those seeking an affordable device that doesn't compromise on quality. Its combination of user-friendly technology and classic Sony design helps it stand out, appealing to a wide audience looking for an entry-level smartphone experience.